package Demo01;
public class StringBufferDemo01 {
    public static  void main(String[] args) throws  Exception{
        StringBuffer buffer = new StringBuffer();
        buffer.append("沐言科技：").append("www.yootk.com").append("\n");
        change(buffer);
        System.out.println(buffer);
    }
    public static void change(StringBuffer temp){
        temp.append("李兴华编程训练营：").append("edu.yootk.com");
    }
}
